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Evaluation of the potential of lines and hybrids of biomass sorghum.
- Source :
-
Industrial Crops & Products . Dec2018, Vol. 125, p379-385. 7p. - Publication Year :
- 2018
-
Abstract
- Highlights • Partial diallel analysis is promising for production of second-generation ethanol. • Treatment × environment interaction was observed for all the evaluated traits. • Genetic variability was detected between the lines A and R of biomass sorghum. • The pyramiding of favorable alleles, aim at the development of superior hybrids. Abstract Mutant genotypes of biomass sorghum for low lignin - bmr (brown midrib) and sensitive to photoperiod are interesting for the production of second-generation ethanol. This research aimed to estimate the combining ability between lines A and R of biomass sorghum, both carrying the bmr-6 allele, for bioenergy potential. Three male-sterile lines (A) and ten fertility restorative lines (R) were used, generating 30 hybrids bmr and sensitive to photoperiod. The 30 hybrids, their parents, and six controls were evaluated in a triple lattice design (7 × 7), in two experimental areas of Embrapa Maize and Sorghum, in Sete Lagoas and Nova Porteirinha (Minas Gerais). These lines were crossed in a partial diallel design, based on the Griffing IV model (1956) adapted for partial diallel by Miranda Filho and Geraldi (1984). The evaluated traits were: days to flowering (DTF, days after sowing), plant height (PH, m), fresh biomass yield (FBY, ton.ha−1), dry matter (DM, %), and dry matter yield (DMY, t. ha−1). In addition, the FAI-BLUP selection Index was used to assist the selection of hybrids that simultaneously meet favorable traits. Results revealed that treatments x environment interaction had a significant effect (p < 0.01) for all traits. Moreover, genetic variability was detected between lines A and R, which can be explored by the pyramiding of their favorable alleles, aiming at developing superior hybrids for the production of second-generation bioethanol. [ABSTRACT FROM AUTHOR]
- Subjects :
- *BIOMASS
*SORGHUM
*ETHANOL
*PLANT genetics
*PLANT breeding
Subjects
Details
- Language :
- English
- ISSN :
- 09266690
- Volume :
- 125
- Database :
- Academic Search Index
- Journal :
- Industrial Crops & Products
- Publication Type :
- Academic Journal
- Accession number :
- 132288696
- Full Text :
- https://doi.org/10.1016/j.indcrop.2018.08.022